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<td ><a href="../qtdoc/index.html">Qt 5.12</a></td><td ><a href="qtquick-index.html">Qt Quick 模块</a></td><td ><a href="qtquick-qmlmodule.html">QML类型</a></td><td >Path QML 类型</td></tr></table><table class="buildversion"><tr>
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<h3><a name="toc">目录</a></h3>
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<li class="level1"><a href="#properties">属性</a></li>
<li class="level1"><a href="#details">详细信息</a></li>
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<h1 class="title">Path QML 类型</h1>
<span class="subtitle"></span>
<!-- $$$Path-brief -->
<p>Defines a path for use by <a href="qml-qtquick-pathview.html">PathView</a> and <a href="qml-qtquick-shapes-shape.html">Shape</a>. <a href="#details">更多...</a></p>
<!-- @@@Path -->
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<tr><td class="memItemLeft rightAlign topAlign"> 导入语句：</td><td class="memItemRight bottomAlign"> import QtQuick 2.12</td></tr><tr><td class="memItemLeft rightAlign topAlign"> 被继承：</td><td class="memItemRight bottomAlign"> <p><a href="qml-qtquick-shapes-shapepath.html">ShapePath</a></p>
</td></tr></table></div><ul>
<li><a href="qml-qtquick-path-members.html">所有成员的列表，包括继承成员</a></li>
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<h2 id="properties">属性</h2>
<ul>
<li class="fn"><b><b><a href="qml-qtquick-path.html#closed-prop">closed</a></b></b> : bool</li>
<li class="fn"><b><b><a href="qml-qtquick-path.html#pathElements-prop">pathElements</a></b></b> : list&lt;PathElement&gt;</li>
<li class="fn"><b><b><a href="qml-qtquick-path.html#startX-prop">startX</a></b></b> : real</li>
<li class="fn"><b><b><a href="qml-qtquick-path.html#startY-prop">startY</a></b></b> : real</li>
</ul>
<!-- $$$Path-description -->
<a name="details"></a>
<h2 id="details">详细信息</h2>
<p>A Path is composed of one or more path segments - <a href="qml-qtquick-pathline.html">PathLine</a>, <a href="qml-qtquick-pathquad.html">PathQuad</a>, <a href="qml-qtquick-pathcubic.html">PathCubic</a>, <a href="qml-qtquick-patharc.html">PathArc</a>, <a href="qml-qtquick-pathanglearc.html">PathAngleArc</a>, <a href="qml-qtquick-pathcurve.html">PathCurve</a>, <a href="qml-qtquick-pathsvg.html">PathSvg</a>.</p>
<p>The spacing of the items along the Path can be adjusted via a <a href="qml-qtquick-pathpercent.html">PathPercent</a> object.</p>
<p><a href="qml-qtquick-pathattribute.html">PathAttribute</a> allows named attributes with values to be defined along the path.</p>
<p>Path and the other types for specifying path elements are shared between <a href="qml-qtquick-pathview.html">PathView</a> and <a href="qml-qtquick-shapes-shape.html">Shape</a>. The following table provides an overview of the applicability of the various path elements:</p>
<div class="table"><table class="generic">
 <thead><tr class="qt-style"><th >Element</th><th ><a href="qml-qtquick-pathview.html">PathView</a></th><th >Shape</th><th >Shape, GL_NV_path_rendering</th><th >Shape, software</th></tr></thead>
<tr valign="top" class="odd"><td ><a href="qml-qtquick-pathmove.html">PathMove</a></td><td >N/A</td><td >Yes</td><td >Yes</td><td >Yes</td></tr>
<tr valign="top" class="even"><td ><a href="qml-qtquick-pathline.html">PathLine</a></td><td >Yes</td><td >Yes</td><td >Yes</td><td >Yes</td></tr>
<tr valign="top" class="odd"><td ><a href="qml-qtquick-pathquad.html">PathQuad</a></td><td >Yes</td><td >Yes</td><td >Yes</td><td >Yes</td></tr>
<tr valign="top" class="even"><td ><a href="qml-qtquick-pathcubic.html">PathCubic</a></td><td >Yes</td><td >Yes</td><td >Yes</td><td >Yes</td></tr>
<tr valign="top" class="odd"><td ><a href="qml-qtquick-patharc.html">PathArc</a></td><td >Yes</td><td >Yes</td><td >Yes</td><td >Yes</td></tr>
<tr valign="top" class="even"><td ><a href="qml-qtquick-pathanglearc.html">PathAngleArc</a></td><td >Yes</td><td >Yes</td><td >Yes</td><td >Yes</td></tr>
<tr valign="top" class="odd"><td ><a href="qml-qtquick-pathsvg.html">PathSvg</a></td><td >Yes</td><td >Yes</td><td >Yes</td><td >Yes</td></tr>
<tr valign="top" class="even"><td ><a href="qml-qtquick-pathattribute.html">PathAttribute</a></td><td >Yes</td><td >N/A</td><td >N/A</td><td >N/A</td></tr>
<tr valign="top" class="odd"><td ><a href="qml-qtquick-pathpercent.html">PathPercent</a></td><td >Yes</td><td >N/A</td><td >N/A</td><td >N/A</td></tr>
<tr valign="top" class="even"><td ><a href="qml-qtquick-pathcurve.html">PathCurve</a></td><td >Yes</td><td >No</td><td >No</td><td >No</td></tr>
</table></div>
<p><b>Note: </b>Path is a non-visual type; it does not display anything on its own. To draw a path, use <a href="qml-qtquick-shapes-shape.html">Shape</a>.</p><p><b>请参考</b> <a href="qml-qtquick-pathview.html">PathView</a>, <a href="qml-qtquick-shapes-shape.html">Shape</a>, <a href="qml-qtquick-pathattribute.html">PathAttribute</a>, <a href="qml-qtquick-pathpercent.html">PathPercent</a>, <a href="qml-qtquick-pathline.html">PathLine</a>, <a href="qml-qtquick-pathmove.html">PathMove</a>, <a href="qml-qtquick-pathquad.html">PathQuad</a>, <a href="qml-qtquick-pathcubic.html">PathCubic</a>, <a href="qml-qtquick-patharc.html">PathArc</a>，<a href="qml-qtquick-pathanglearc.html">PathAngleArc</a>，<a href="qml-qtquick-pathcurve.html">PathCurve</a> 和 <a href="qml-qtquick-pathsvg.html">PathSvg</a>。</p>
<!-- @@@Path -->
<h2>属性文档</h2>
<!-- $$$closed -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="closed-prop">
<td class="tblQmlPropNode"><p>
<a name="closed-prop"></a><span class="name">closed</span> : <span class="type"><a href="../qtqml/qml-bool.html">bool</a></span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>This property holds whether the start and end of the path are identical.</p>
</div></div><!-- @@@closed -->
<br/>
<!-- $$$pathElements -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="pathElements-prop">
<td class="tblQmlPropNode"><p>
<a name="pathElements-prop"></a><span class="qmldefault">[default] </span><span class="name">pathElements</span> : <span class="type"><a href="../qtqml/qml-list.html">list</a></span>&lt;<span class="type"><a href="qml-qtquick-pathelement.html">PathElement</a></span>&gt;</p></td></tr>
</table></div>
</div><div class="qmldoc"><p>This property holds the objects composing the path.</p>
<p>A path can contain the following path objects:</p>
<ul>
<li><a href="qml-qtquick-pathline.html">PathLine</a> - a straight line to a given position.</li>
<li><a href="qml-qtquick-pathquad.html">PathQuad</a> - a quadratic Bezier curve to a given position with a control point.</li>
<li><a href="qml-qtquick-pathcubic.html">PathCubic</a> - a cubic Bezier curve to a given position with two control points.</li>
<li><a href="qml-qtquick-patharc.html">PathArc</a> - an arc to a given position with a radius.</li>
<li><a href="qml-qtquick-pathanglearc.html">PathAngleArc</a> - an arc specified by center point, radii, and angles.</li>
<li><a href="qml-qtquick-pathsvg.html">PathSvg</a> - a path specified as an SVG path data string.</li>
<li><a href="qml-qtquick-pathcurve.html">PathCurve</a> - a point on a Catmull-Rom curve.</li>
<li><a href="qml-qtquick-pathattribute.html">PathAttribute</a> - an attribute at a given position in the path.</li>
<li><a href="qml-qtquick-pathpercent.html">PathPercent</a> - a way to spread out items along various segments of the path.</li>
</ul>
<pre class="qml">

      <span class="type"><a href="qml-qtquick-pathview.html">PathView</a></span> {
          <span class="name">anchors</span>.fill: <span class="name">parent</span>
          <span class="name">model</span>: <span class="name">ContactModel</span> {}
          <span class="name">delegate</span>: <span class="name">delegate</span>
          <span class="name">path</span>: <span class="name">Path</span> {
              <span class="name">startX</span>: <span class="number">120</span>; <span class="name">startY</span>: <span class="number">100</span>
              <span class="type"><a href="qml-qtquick-pathattribute.html">PathAttribute</a></span> { <span class="name">name</span>: <span class="string">&quot;iconScale&quot;</span>; <span class="name">value</span>: <span class="number">1.0</span> }
              <span class="type"><a href="qml-qtquick-pathattribute.html">PathAttribute</a></span> { <span class="name">name</span>: <span class="string">&quot;iconOpacity&quot;</span>; <span class="name">value</span>: <span class="number">1.0</span> }
              <span class="type"><a href="qml-qtquick-pathquad.html">PathQuad</a></span> { <span class="name">x</span>: <span class="number">120</span>; <span class="name">y</span>: <span class="number">25</span>; <span class="name">controlX</span>: <span class="number">260</span>; <span class="name">controlY</span>: <span class="number">75</span> }
              <span class="type"><a href="qml-qtquick-pathattribute.html">PathAttribute</a></span> { <span class="name">name</span>: <span class="string">&quot;iconScale&quot;</span>; <span class="name">value</span>: <span class="number">0.3</span> }
              <span class="type"><a href="qml-qtquick-pathattribute.html">PathAttribute</a></span> { <span class="name">name</span>: <span class="string">&quot;iconOpacity&quot;</span>; <span class="name">value</span>: <span class="number">0.5</span> }
              <span class="type"><a href="qml-qtquick-pathquad.html">PathQuad</a></span> { <span class="name">x</span>: <span class="number">120</span>; <span class="name">y</span>: <span class="number">100</span>; <span class="name">controlX</span>: -<span class="number">20</span>; <span class="name">controlY</span>: <span class="number">75</span> }
          }
      }

</pre>
</div></div><!-- @@@pathElements -->
<br/>
<!-- $$$startX -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="startX-prop">
<td class="tblQmlPropNode"><p>
<a name="startX-prop"></a><span class="name">startX</span> : <span class="type"><a href="../qtqml/qml-real.html">real</a></span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>These properties hold the starting position of the path.</p>
</div></div><!-- @@@startX -->
<br/>
<!-- $$$startY -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="startY-prop">
<td class="tblQmlPropNode"><p>
<a name="startY-prop"></a><span class="name">startY</span> : <span class="type"><a href="../qtqml/qml-real.html">real</a></span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>These properties hold the starting position of the path.</p>
</div></div><!-- @@@startY -->
<br/>
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